linux-kernel - Re: [PATCH 6/8] printk: Start printing handover kthreads on demand

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Message-ID: <20140326171641.0e117018@alan.etchedpixels.co.uk>
Date:	Wed, 26 Mar 2014 17:16:41 +0000
From:	One Thousand Gnomes <gnomes@...rguk.ukuu.org.uk>
To:	Jan Kara <jack@...e.cz>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>, pmladek@...e.cz,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH 6/8] printk: Start printing handover kthreads on demand

On Tue, 25 Mar 2014 18:54:59 +0100
Jan Kara <jack@...e.cz> wrote:

> Start kthreads for handing over printing only when printk.offload_chars
> is set to value > 0 (i.e., when print offloading gets enabled).

The original set it was suggested that having all these threads around
that 99.99999% of users don't need was a waste and why not start them
when needed. Also I asked why you couldn't just schedule_work the jobs
onto CPUs instead.

I don't recall seeing a reply to that - and it doesn't appear fixed here ?

Alan
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